Airtac LRM Miniature Linear Guide LRM12L1X395S10BPT
The AirTAC Airtac LRM Miniature Linear Guide LRM12L1X395S10BPT is a miniature linear guide on a 12 mm stainless-steel rail with recirculating-ball carriage. It is the small end of the range, for light-duty precision positioning in a tight envelope — compact stages, small pick-and-place heads and inspection fixtures.
- SeriesLRM
- Supplied asComplete guide set
- SizeLRM12
- Rail width12 mm
- Carriage lengthLong carriage
- Carriages1
- Rail length395 mm
- AccuracyP — precision grade
- PreloadB — light preload
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac LRM Miniature Linear Guide LRM12L1X395S10BPT
Ordered as LRM12L1X395S10BPT, you get the complete pair: a stainless-steel rail, 12 mm across and 395 mm end to end, with one long recirculating-ball carriage fitted. Preload is light (B) and accuracy is the precision grade P. The trailing T in the code sets bottom-mount fixing - the screw holes are approached from underneath, so the visible top surface stays uninterrupted, useful where product or optics pass directly over the rail.
That under-fix layout changes how you handle the assembly: a carriage on an inclined rail can slide off under its own weight, so hold it during fitting, and never strike the rail, since bruising you cannot see still costs accuracy. The balls are ISO 3290 G10 Japanese grade, retained by the carriage's ball retainer, though angled insertion or a hurried swap can still drop them - a dummy rail makes fitting safer. A double-lip seal scrapes oil back and keeps dust out beneath the outer cover. Keep the environment below 80 C. No load or moment ratings are published for LRM; we confirm the figures for this code on request before ordering.
Airtac LRM Miniature Linear Guide LRM12L1X395S10BPT Technical Specifications
| Model | Airtac LRM Miniature Linear Guide LRM12L1X395S10BPT |
|---|---|
| Series | LRM Series Miniature Linear Guide |
| Supplied as | Complete guide set |
| Construction | Recirculating ball, stainless-steel rail, common-rail design |
| Size code | LRM12 |
| Rail width | 12 mm |
| Carriage length | Long carriage |
| Carriages supplied | 1 |
| Rail length | 395 mm (spliced sections) |
| Load & moment ratings | Not published for this series — ask us to confirm for your model |
|---|---|
| Accuracy grade | P — precision grade |
| Preload grade | B — light preload |
| Mounting screws | M2 or M3 rail screws depending on size |
| Lubrication | Pre-filled with Kyodo Yushi PS No. 2; top up through the rear lubrication hole |
| Ambient temperature | Up to 80 °C ambient, 100 °C transient peak |
| Interchangeability | LRM carriages fit LRM rails of the same model |
Specifications follow the official AirTAC LRM catalogue. The catalogue does not publish load or moment ratings, running parallelism, speed limits, or carriage base material for LRM. We will not quote a figure we cannot source — ask us and we will confirm it for your model.
Model Code: Airtac LRM Miniature Linear Guide LRM12L1X395S10BPT
| LRM | LRM Series Miniature Linear Guide. |
|---|---|
| 12 | Size code. |
| L | Long carriage. |
| 1X395 | 1 carriage on a 395 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| B | B — light preload — higher preload raises rigidity and tightens how flat the mounting surface must be. |
| P | P — precision grade. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 395 mm |
| Carriage | Yes, 1 |
Rail and carriage(s) supplied together, matched as a set. If you are not sure which form you need, send us the machine or the original part number and we will confirm it before you order.
Where the Airtac LRM Miniature Linear Guide LRM12L1X395S10BPT Is Used
Fiber array alignment stage
Butt-coupling a fiber array to a photonic chip demands repeatable micron-scale moves; the P precision grade and light preload give fine, low-friction adjustment while bottom-mount fixing keeps the top plane clear for the fibers themselves.
Cable pull-test traverse
A bench rig that pays wire off a spool at constant speed runs a light traverse on a compact guide; the long carriage steadies the guide eye, and the ball retainer keeps the balls in place during routine repositioning.
Test-socket indexer
A semiconductor test bench indexes small packages between socket and tray; the 395 mm stainless rail covers the shuttle, and the double-lip sealed, covered carriage keeps solder dust out of the raceways.
Is the Airtac LRM Miniature Linear Guide LRM12L1X395S10BPT the Right Guide?
If the job involves real load or a cantilevered mass, do not force this part into service: LSH publishes dynamic, static and moment ratings per carriage that you can size against, while LRM gives you no table at all. If the travel is short and you want crossed-roller rigidity instead, look at LGC. When specifying, settle every field: set or carriage-only form, 12 mm rail width, long carriage, one carriage, 395 mm rail length, light preload B, precision accuracy P, bottom-mount fixing, and the load rating confirmed with us directly. Long carriages cost nothing in availability here - we stock 512 long-carriage sets against 475 standard - so the choice is engineering, not logistics.
Quick checklist
- ✓ Complete set, carriage only, or rail only?
- ✓ Load and moment confirmed with us
- ✓ Travel length and mounting space
- ✓ Accuracy grade and preload
- ✓ Mounting surface ground or finish-milled
- ✓ Pairing code, if replacing a part
Installation & Maintenance Notes
- check Mounting surface must be ground or finish-milled.
- check Torque the rail screws per the recommended figures, in sequence.
- check Keep the mounting corner radius inside the stated R maximum.
- check Do not angle the carriage onto the rail; balls can drop out.
- check Drive the supplied bolt caps into the mounting holes.
- check Re-grease every 100 km of travel or every 3–6 months.
- check Installation by qualified personnel per AirTAC docs.
Airtac LRM Miniature Linear Guide LRM12L1X395S10BPT FAQ
Rail width 12 mm, rail length 395 mm, a single long carriage, light preload (B), precision accuracy (P), 10 mm end-hole offset, bottom-mount fixing. Torque the screws correctly: M2 at 58.8 N.cm into steel, 39.2 into cast iron, 29.4 into aluminium; M3 at 196 N.cm into steel, 127 into cast iron, 98 into aluminium. Ambient temperature stays at or under 80 C (peaks 100 C), and re-greasing is due every 100 km of travel or every 3 to 6 months. Dynamic, static and moment ratings are not published for this series - we verify them for your exact code before you order.
Yes, through carriage-only BK codes, but note two things: those codes carry a pairing letter (A to E) that must match the letter assigned to your rail, and our carriage-only stock is very thin - four SKUs - so a replacement is usually a special order. Never slide a carriage onto the rail at an angle or pull it off quickly; balls can still escape despite the retainer. A dummy rail makes safe carriage fitting far easier.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LRM Miniature Linear Guide LRM12L1X395S10BPT
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours. We can also confirm the load and moment rating for this model.